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http://www.sciencenews.org/view/issue/id/5964
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In the December 5 Issue:
- TABLE OF CONTENTS
- Climate might be right for a deal: Copenhagen negotiations will take steps toward a climate-stabilizing treaty
- Botanical Whales: Adventures in the Tortugas reveal that seagrass fields need saving too
- Breaking the Speed Limit: Studies examine physiology and technology to better foresee the ultimate edge of human performance
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March 12th, 2005
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People who make a particular form of an immune system protein have a heightened risk of developing old-age blindness. (p. 163)
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Rhesus monkeys treat a competitor's averted eyes as a license to steal his or her food. (p. 163)
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The extraterrestrial object that gouged out Arizona's Meteor Crater about 50,000 years ago struck at a speed much slower than most scientists had previously proposed. (p. 164)
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A new study suggests that no star in our galaxy can weigh more than 150 times the mass of the sun. (p. 164)
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Massaging premature babies with sunflower-seed oil can cut bloodborne infection rates. (p. 165)
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Motor oil's protection against the wear and tear of steel engine parts takes effect only at high pressures. (p. 165)
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A European wasp leaves a smear of bacteria near each of her eggs as protection against the perils of youth. (p. 166)
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Venetian Renaissance artists, renowned for their vibrant colors, mixed powdered glass with their paints in an attempt to expand their palettes and create unique optical effects. (p. 168)
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The rocky remains of nuclear reactors that formed spontaneously in African uranium deposits 2 billion years ago are yielding striking new details about their operation as well as signs that a fundamental aspect of the universe may have once been stronger than it is today. (p. 170)
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Children with autism avoid eye contact because they experience uncomfortably intense emotional reactions when looking at faces. (p. 173)
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A tiny, humanlike species that inhabited an Indonesian island more than 20,000 years ago possessed a brain that shared some organizational features with Homo erectus, a large-brained human ancestor that thought in complex ways. (p. 173)
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A single gene may oversee the sense of smell in a variety of insect species. (p. 173)
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X-ray telescopes have captured the earliest and clearest view of the core of a gas cloud about to transform into a star. (p. 174)
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Deep-brain electrical stimulation has shown promise in treating severe depression. (p. 174)
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Abstinence and monogamy may deserve little, if any, credit for the recent drop in the proportion of Ugandans who are infected with HIV. (p. 174)
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An experimental vaccine, when given to people infected with HIV, appears to reduce their dependence on antiviral drugs. (p. 174)
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(p. 175)
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